An algorithm that refines an initial simplicial tessellation using edge subdivision. More...

#include <vtkStreamingTessellator.h>

Inheritance diagram for vtkStreamingTessellator:

Collaboration diagram for vtkStreamingTessellator:

Public Types
enum	{ MaxFieldSize = 18 }

typedef vtkObject	Superclass

typedef void(*	VertexProcessorFunction) (const double , vtkEdgeSubdivisionCriterion , void , const void )

typedef void(*	EdgeProcessorFunction) (const double , const double , vtkEdgeSubdivisionCriterion , void , const void *)

typedef void(*	TriangleProcessorFunction) (const double , const double , const double , vtkEdgeSubdivisionCriterion , void , const void )

typedef void(*	TetrahedronProcessorFunction) (const double , const double , const double , const double , vtkEdgeSubdivisionCriterion , void , const void *)

Public Member Functions
virtual vtkTypeBool	IsA (const char *type)
	Return 1 if this class is the same type of (or a subclass of) the named class.

vtkStreamingTessellator *	NewInstance () const

void	PrintSelf (ostream &os, vtkIndent indent) override
	Methods invoked by print to print information about the object including superclasses.

virtual const vtkEdgeSubdivisionCriterion *	GetSubdivisionAlgorithm () const


virtual void	SetTetrahedronCallback (TetrahedronProcessorFunction)
	Get/Set the function called for each output tetrahedron (3-facet).

virtual TetrahedronProcessorFunction	GetTetrahedronCallback () const
	Get/Set the function called for each output tetrahedron (3-facet).


virtual void	SetTriangleCallback (TriangleProcessorFunction)
	Get/Set the function called for each output triangle (2-facet).

virtual TriangleProcessorFunction	GetTriangleCallback () const
	Get/Set the function called for each output triangle (2-facet).


virtual void	SetEdgeCallback (EdgeProcessorFunction)
	Get/Set the function called for each output line segment (1-facet).

virtual EdgeProcessorFunction	GetEdgeCallback () const
	Get/Set the function called for each output line segment (1-facet).


virtual void	SetVertexCallback (VertexProcessorFunction)
	Get/Set the function called for each output line segment (1-facet).

virtual VertexProcessorFunction	GetVertexCallback () const
	Get/Set the function called for each output line segment (1-facet).


virtual void	SetPrivateData (void *Private)
	Get/Set a void pointer passed to the triangle and edge output functions.

virtual void *	GetPrivateData () const
	Get/Set a void pointer passed to the triangle and edge output functions.


virtual void	SetConstPrivateData (const void *ConstPrivate)
	Get/Set a constant void pointer passed to the simplex output functions.

virtual const void *	GetConstPrivateData () const
	Get/Set a constant void pointer passed to the simplex output functions.


virtual void	SetSubdivisionAlgorithm (vtkEdgeSubdivisionCriterion *)
	Get/Set the algorithm used to determine whether an edge should be subdivided or left as-is.

virtual vtkEdgeSubdivisionCriterion *	GetSubdivisionAlgorithm ()
	Get/Set the algorithm used to determine whether an edge should be subdivided or left as-is.


virtual void	SetEmbeddingDimension (int k, int d)
	Get/Set the number of parameter-space coordinates associated with each input and output point.

int	GetEmbeddingDimension (int k) const
	Get/Set the number of parameter-space coordinates associated with each input and output point.


virtual void	SetFieldSize (int k, int s)
	Get/Set the number of field value coordinates associated with each input and output point.

int	GetFieldSize (int k) const
	Get/Set the number of field value coordinates associated with each input and output point.


virtual void	SetMaximumNumberOfSubdivisions (int num_subdiv_in)
	Get/Set the maximum number of subdivisions that may occur.

int	GetMaximumNumberOfSubdivisions ()
	Get/Set the maximum number of subdivisions that may occur.


void	AdaptivelySample3FacetLinear (double v0, double v1, double v2, double v3) const
	This will adaptively subdivide the tetrahedron (3-facet), triangle (2-facet), or edge (1-facet) until the subdivision algorithm returns false for every edge or the maximum recursion depth is reached.

void	AdaptivelySample2FacetLinear (double v0, double v1, double *v2) const
	This will adaptively subdivide the tetrahedron (3-facet), triangle (2-facet), or edge (1-facet) until the subdivision algorithm returns false for every edge or the maximum recursion depth is reached.

void	AdaptivelySample1FacetLinear (double v0, double v1) const
	This will adaptively subdivide the tetrahedron (3-facet), triangle (2-facet), or edge (1-facet) until the subdivision algorithm returns false for every edge or the maximum recursion depth is reached.

void	AdaptivelySample3Facet (double v0, double v1, double v2, double v3) const
	This will adaptively subdivide the tetrahedron (3-facet), triangle (2-facet), or edge (1-facet) until the subdivision algorithm returns false for every edge or the maximum recursion depth is reached.

void	AdaptivelySample2Facet (double v0, double v1, double *v2) const
	This will adaptively subdivide the tetrahedron (3-facet), triangle (2-facet), or edge (1-facet) until the subdivision algorithm returns false for every edge or the maximum recursion depth is reached.

void	AdaptivelySample1Facet (double v0, double v1) const
	This will adaptively subdivide the tetrahedron (3-facet), triangle (2-facet), or edge (1-facet) until the subdivision algorithm returns false for every edge or the maximum recursion depth is reached.

void	AdaptivelySample0Facet (double *v0) const
	This will adaptively subdivide the tetrahedron (3-facet), triangle (2-facet), or edge (1-facet) until the subdivision algorithm returns false for every edge or the maximum recursion depth is reached.


void	ResetCounts ()
	Reset/access the histogram of subdivision cases encountered.

vtkIdType	GetCaseCount (int c)
	Reset/access the histogram of subdivision cases encountered.

vtkIdType	GetSubcaseCount (int casenum, int sub)
	Reset/access the histogram of subdivision cases encountered.

Public Member Functions inherited from vtkObject
	vtkBaseTypeMacro (vtkObject, vtkObjectBase)

virtual void	DebugOn ()
	Turn debugging output on.

virtual void	DebugOff ()
	Turn debugging output off.

bool	GetDebug ()
	Get the value of the debug flag.

void	SetDebug (bool debugFlag)
	Set the value of the debug flag.

virtual void	Modified ()
	Update the modification time for this object.

virtual vtkMTimeType	GetMTime ()
	Return this object's modified time.

void	PrintSelf (ostream &os, vtkIndent indent) override
	Methods invoked by print to print information about the object including superclasses.

void	RemoveObserver (unsigned long tag)

void	RemoveObservers (unsigned long event)

void	RemoveObservers (const char *event)

void	RemoveAllObservers ()

vtkTypeBool	HasObserver (unsigned long event)

vtkTypeBool	HasObserver (const char *event)

int	InvokeEvent (unsigned long event)

int	InvokeEvent (const char *event)

unsigned long	AddObserver (unsigned long event, vtkCommand *, float priority=0.0f)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.

unsigned long	AddObserver (const char event, vtkCommand , float priority=0.0f)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.

vtkCommand *	GetCommand (unsigned long tag)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.

void	RemoveObserver (vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.

void	RemoveObservers (unsigned long event, vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.

void	RemoveObservers (const char event, vtkCommand )
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.

vtkTypeBool	HasObserver (unsigned long event, vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.

vtkTypeBool	HasObserver (const char event, vtkCommand )
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.

template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, void(T::*callback)(), float priority=0.0f)
	Overloads to AddObserver that allow developers to add class member functions as callbacks for events.

template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, void(T::callback)(vtkObject , unsigned long, void *), float priority=0.0f)
	Overloads to AddObserver that allow developers to add class member functions as callbacks for events.

template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, bool(T::callback)(vtkObject , unsigned long, void *), float priority=0.0f)
	Allow user to set the AbortFlagOn() with the return value of the callback method.

int	InvokeEvent (unsigned long event, void *callData)
	This method invokes an event and return whether the event was aborted or not.

int	InvokeEvent (const char event, void callData)
	This method invokes an event and return whether the event was aborted or not.

Public Member Functions inherited from vtkObjectBase
const char *	GetClassName () const
	Return the class name as a string.

virtual vtkTypeBool	IsA (const char *name)
	Return 1 if this class is the same type of (or a subclass of) the named class.

virtual vtkIdType	GetNumberOfGenerationsFromBase (const char *name)
	Given the name of a base class of this class type, return the distance of inheritance between this class type and the named class (how many generations of inheritance are there between this class and the named class).

virtual void	Delete ()
	Delete a VTK object.

virtual void	FastDelete ()
	Delete a reference to this object.

void	InitializeObjectBase ()

void	Print (ostream &os)
	Print an object to an ostream.

virtual void	Register (vtkObjectBase *o)
	Increase the reference count (mark as used by another object).

virtual void	UnRegister (vtkObjectBase *o)
	Decrease the reference count (release by another object).

int	GetReferenceCount ()
	Return the current reference count of this object.

void	SetReferenceCount (int)
	Sets the reference count.

bool	GetIsInMemkind () const
	A local state flag that remembers whether this object lives in the normal or extended memory space.

virtual void	PrintHeader (ostream &os, vtkIndent indent)
	Methods invoked by print to print information about the object including superclasses.

virtual void	PrintTrailer (ostream &os, vtkIndent indent)
	Methods invoked by print to print information about the object including superclasses.

Static Public Member Functions
static vtkTypeBool	IsTypeOf (const char *type)

static vtkStreamingTessellator *	SafeDownCast (vtkObjectBase *o)

static vtkStreamingTessellator *	New ()

Static Public Member Functions inherited from vtkObject
static vtkObject *	New ()
	Create an object with Debug turned off, modified time initialized to zero, and reference counting on.

static void	BreakOnError ()
	This method is called when vtkErrorMacro executes.

static void	SetGlobalWarningDisplay (int val)
	This is a global flag that controls whether any debug, warning or error messages are displayed.

static void	GlobalWarningDisplayOn ()
	This is a global flag that controls whether any debug, warning or error messages are displayed.

static void	GlobalWarningDisplayOff ()
	This is a global flag that controls whether any debug, warning or error messages are displayed.

static int	GetGlobalWarningDisplay ()
	This is a global flag that controls whether any debug, warning or error messages are displayed.

Static Public Member Functions inherited from vtkObjectBase
static vtkTypeBool	IsTypeOf (const char *name)
	Return 1 if this class type is the same type of (or a subclass of) the named class.

static vtkIdType	GetNumberOfGenerationsFromBaseType (const char *name)
	Given a the name of a base class of this class type, return the distance of inheritance between this class type and the named class (how many generations of inheritance are there between this class and the named class).

static vtkObjectBase *	New ()
	Create an object with Debug turned off, modified time initialized to zero, and reference counting on.

static void	SetMemkindDirectory (const char *directoryname)
	The name of a directory, ideally mounted -o dax, to memory map an extended memory space within.

static bool	GetUsingMemkind ()
	A global state flag that controls whether vtkObjects are constructed in the usual way (the default) or within the extended memory space.

Protected Member Functions
virtual vtkObjectBase *	NewInstanceInternal () const

	vtkStreamingTessellator ()

	~vtkStreamingTessellator () override

void	AdaptivelySample3Facet (double v0, double v1, double v2, double v3, int maxDepth) const

void	AdaptivelySample2Facet (double v0, double v1, double *v2, int maxDepth, int move=7) const

void	AdaptivelySample1Facet (double v0, double v1, int maxDepth) const

int	BestTets (int , double *, int, int) const

Protected Member Functions inherited from vtkObject
	vtkObject ()

	~vtkObject () override

void	RegisterInternal (vtkObjectBase *, vtkTypeBool check) override

void	UnRegisterInternal (vtkObjectBase *, vtkTypeBool check) override

void	InternalGrabFocus (vtkCommand mouseEvents, vtkCommand keypressEvents=nullptr)
	These methods allow a command to exclusively grab all events.

void	InternalReleaseFocus ()
	These methods allow a command to exclusively grab all events.

Protected Member Functions inherited from vtkObjectBase
	vtkObjectBase ()

virtual	~vtkObjectBase ()

virtual void	RegisterInternal (vtkObjectBase *, vtkTypeBool check)

virtual void	UnRegisterInternal (vtkObjectBase *, vtkTypeBool check)

virtual void	ReportReferences (vtkGarbageCollector *)

	vtkObjectBase (const vtkObjectBase &)

void	operator= (const vtkObjectBase &)

Protected Attributes
void *	PrivateData

const void *	ConstPrivateData

vtkEdgeSubdivisionCriterion *	Algorithm

VertexProcessorFunction	Callback0

EdgeProcessorFunction	Callback1

TriangleProcessorFunction	Callback2

TetrahedronProcessorFunction	Callback3

int	PointDimension [4]
	PointDimension is the length of each `double*` array associated with each point passed to a subdivision algorithm: PointDimension[i] = 3 + EmbeddingDimension[i] + FieldSize[i] We store this instead of FieldSize for speed.

int	EmbeddingDimension [4]
	The parametric dimension of each point passed to the subdivision algorithm.

int	MaximumNumberOfSubdivisions
	The number of subdivisions allowed.

Protected Attributes inherited from vtkObject
bool	Debug

vtkTimeStamp	MTime

vtkSubjectHelper *	SubjectHelper

Protected Attributes inherited from vtkObjectBase
std::atomic< int32_t >	ReferenceCount

vtkWeakPointerBase **	WeakPointers

Static Protected Attributes
static int	EdgeCodesToCaseCodesPlusPermutation [64][2]

static vtkIdType	PermutationsFromIndex [24][14]

static vtkIdType	TetrahedralDecompositions []

Additional Inherited Members
Static Protected Member Functions inherited from vtkObjectBase
static vtkMallocingFunction	GetCurrentMallocFunction ()

static vtkReallocingFunction	GetCurrentReallocFunction ()

static vtkFreeingFunction	GetCurrentFreeFunction ()

static vtkFreeingFunction	GetAlternateFreeFunction ()

Detailed Description

An algorithm that refines an initial simplicial tessellation using edge subdivision.

This class is a simple algorithm that takes a single starting simplex – a tetrahedron, triangle, or line segment – and calls a function you pass it with (possibly many times) tetrahedra, triangles, or lines adaptively sampled from the one you specified. It uses an algorithm you specify to control the level of adaptivity.

This class does not create vtkUnstructuredGrid output because it is intended for use in mappers as well as filters. Instead, it calls the registered function with simplices as they are created.

The subdivision algorithm should change the vertex coordinates (it must change both geometric and, if desired, parametric coordinates) of the midpoint. These coordinates need not be changed unless the EvaluateLocationAndFields() member returns true. The vtkStreamingTessellator itself has no way of creating a more accurate midpoint vertex.

Here's how to use this class:

Call AdaptivelySample1Facet, AdaptivelySample2Facet, or AdaptivelySample3Facet, with an edge, triangle, or tetrahedron you want tessellated.
The adaptive tessellator classifies each edge by passing the midpoint values to the vtkEdgeSubdivisionCriterion.
After each edge is classified, the tessellator subdivides edges as required until the subdivision criterion is satisfied or the maximum subdivision depth has been reached.
Edges, triangles, or tetrahedra connecting the vertices generated by the subdivision algorithm are processed by calling the user-defined callback functions (set with SetTetrahedronCallback(), SetTriangleCallback(), or SetEdgeCallback() ).

Warning: Note that the vertices passed to AdaptivelySample3Facet, AdaptivelySample2Facet, or AdaptivelySample1Facet must be at least 6, 5, or 4 entries long, respectively! This is because the <r,s,t>, <r,s>, or <r> parametric coordinates of the vertices are maintained as the facet is subdivided. This information is often required by the subdivision algorithm in order to compute an error metric. You may change the number of parametric coordinates associated with each vertex using vtkStreamingTessellator::SetEmbeddingDimension().

Interpolating Field Values:: If you wish, you may also use vtkStreamingTessellator to interpolate field values at newly created vertices. Interpolated field values are stored just beyond the parametric coordinates associated with a vertex. They will always be double values; it does not make sense to interpolate a boolean or string value and your output and subdivision subroutines may always cast to a float or use floor() to truncate an interpolated value to an integer.

See also: vtkEdgeSubdivisionCriterion

Definition at line 85 of file vtkStreamingTessellator.h.

Member Typedef Documentation

◆ Superclass

typedef vtkObject vtkStreamingTessellator::Superclass

Definition at line 88 of file vtkStreamingTessellator.h.

◆ VertexProcessorFunction

typedef void(* vtkStreamingTessellator::VertexProcessorFunction) (const double *, vtkEdgeSubdivisionCriterion *, void *, const void *)

Definition at line 92 of file vtkStreamingTessellator.h.

◆ EdgeProcessorFunction

typedef void(* vtkStreamingTessellator::EdgeProcessorFunction) (const double *, const double *, vtkEdgeSubdivisionCriterion *, void *, const void *)

Definition at line 94 of file vtkStreamingTessellator.h.

◆ TriangleProcessorFunction

typedef void(* vtkStreamingTessellator::TriangleProcessorFunction) (const double *, const double *, const double *, vtkEdgeSubdivisionCriterion *, void *, const void *)

Definition at line 96 of file vtkStreamingTessellator.h.

◆ TetrahedronProcessorFunction

typedef void(* vtkStreamingTessellator::TetrahedronProcessorFunction) (const double *, const double *, const double *, const double *, vtkEdgeSubdivisionCriterion *, void *, const void *)

Definition at line 98 of file vtkStreamingTessellator.h.

Member Enumeration Documentation

◆ anonymous enum

anonymous enum

Enumerator
MaxFieldSize

Definition at line 101 of file vtkStreamingTessellator.h.

Constructor & Destructor Documentation

◆ vtkStreamingTessellator()

vtkStreamingTessellator::vtkStreamingTessellator ( )

protected

◆ ~vtkStreamingTessellator()

vtkStreamingTessellator::~vtkStreamingTessellator ( )

overrideprotected

Member Function Documentation

◆ IsTypeOf()

static vtkTypeBool vtkStreamingTessellator::IsTypeOf ( const char * type )

static

◆ IsA()

virtual vtkTypeBool vtkStreamingTessellator::IsA ( const char * name )

virtual

Return 1 if this class is the same type of (or a subclass of) the named class.

Returns 0 otherwise. This method works in combination with vtkTypeMacro found in vtkSetGet.h.

Reimplemented from vtkObjectBase.

◆ SafeDownCast()

static vtkStreamingTessellator * vtkStreamingTessellator::SafeDownCast ( vtkObjectBase * o )

static

◆ NewInstanceInternal()

virtual vtkObjectBase * vtkStreamingTessellator::NewInstanceInternal ( ) const

protectedvirtual

◆ NewInstance()

vtkStreamingTessellator * vtkStreamingTessellator::NewInstance ( ) const

◆ New()

static vtkStreamingTessellator * vtkStreamingTessellator::New ( )

static

◆ PrintSelf()

void vtkStreamingTessellator::PrintSelf	(	ostream &	os,
		vtkIndent	indent
	)

overridevirtual

Methods invoked by print to print information about the object including superclasses.

Typically not called by the user (use Print() instead) but used in the hierarchical print process to combine the output of several classes.

Reimplemented from vtkObject.

◆ SetTetrahedronCallback()

virtual void vtkStreamingTessellator::SetTetrahedronCallback ( TetrahedronProcessorFunction )

virtual

Get/Set the function called for each output tetrahedron (3-facet).

◆ GetTetrahedronCallback()

virtual TetrahedronProcessorFunction vtkStreamingTessellator::GetTetrahedronCallback ( ) const

virtual

Get/Set the function called for each output tetrahedron (3-facet).

◆ SetTriangleCallback()

virtual void vtkStreamingTessellator::SetTriangleCallback ( TriangleProcessorFunction )

virtual

Get/Set the function called for each output triangle (2-facet).

◆ GetTriangleCallback()

virtual TriangleProcessorFunction vtkStreamingTessellator::GetTriangleCallback ( ) const

virtual

Get/Set the function called for each output triangle (2-facet).

◆ SetEdgeCallback()

virtual void vtkStreamingTessellator::SetEdgeCallback ( EdgeProcessorFunction )

virtual

Get/Set the function called for each output line segment (1-facet).

◆ GetEdgeCallback()

virtual EdgeProcessorFunction vtkStreamingTessellator::GetEdgeCallback ( ) const

virtual

Get/Set the function called for each output line segment (1-facet).

◆ SetVertexCallback()

virtual void vtkStreamingTessellator::SetVertexCallback ( VertexProcessorFunction )

virtual

Get/Set the function called for each output line segment (1-facet).

◆ GetVertexCallback()

virtual VertexProcessorFunction vtkStreamingTessellator::GetVertexCallback ( ) const

virtual

Get/Set the function called for each output line segment (1-facet).

◆ SetPrivateData()

virtual void vtkStreamingTessellator::SetPrivateData ( void * Private )

virtual

Get/Set a void pointer passed to the triangle and edge output functions.

◆ GetPrivateData()

virtual void * vtkStreamingTessellator::GetPrivateData ( ) const

virtual

Get/Set a void pointer passed to the triangle and edge output functions.

◆ SetConstPrivateData()

virtual void vtkStreamingTessellator::SetConstPrivateData ( const void * ConstPrivate )

virtual

Get/Set a constant void pointer passed to the simplex output functions.

◆ GetConstPrivateData()

virtual const void * vtkStreamingTessellator::GetConstPrivateData ( ) const

virtual

Get/Set a constant void pointer passed to the simplex output functions.

◆ SetSubdivisionAlgorithm()

virtual void vtkStreamingTessellator::SetSubdivisionAlgorithm ( vtkEdgeSubdivisionCriterion * )

virtual

Get/Set the algorithm used to determine whether an edge should be subdivided or left as-is.

This is used once for each call to AdaptivelySample1Facet (which is recursive and will call itself resulting in additional edges to be checked) or three times for each call to AdaptivelySample2Facet (also recursive).

◆ GetSubdivisionAlgorithm() [1/2]

virtual vtkEdgeSubdivisionCriterion * vtkStreamingTessellator::GetSubdivisionAlgorithm ( )

virtual

Get/Set the algorithm used to determine whether an edge should be subdivided or left as-is.

This is used once for each call to AdaptivelySample1Facet (which is recursive and will call itself resulting in additional edges to be checked) or three times for each call to AdaptivelySample2Facet (also recursive).

◆ GetSubdivisionAlgorithm() [2/2]

virtual const vtkEdgeSubdivisionCriterion * vtkStreamingTessellator::GetSubdivisionAlgorithm ( ) const

virtual

◆ SetEmbeddingDimension()

virtual void vtkStreamingTessellator::SetEmbeddingDimension	(	int	k,
		int	d
	)

virtual

Get/Set the number of parameter-space coordinates associated with each input and output point.

The default is k for k -facets. You may specify a different dimension, d, for each type of k -facet to be processed. For example, SetEmbeddingDimension( 2, 3 ) would associate r, s, and t coordinates with each input and output point generated by AdaptivelySample2Facet but does not say anything about input or output points generated by AdaptivelySample1Facet. Call SetEmbeddingDimension( -1, d ) to specify the same dimension for all possible k values. d may not exceed 8, as that would be plain silly.

◆ GetEmbeddingDimension()

int vtkStreamingTessellator::GetEmbeddingDimension ( int k ) const

inline

Get/Set the number of parameter-space coordinates associated with each input and output point.

The default is k for k -facets. You may specify a different dimension, d, for each type of k -facet to be processed. For example, SetEmbeddingDimension( 2, 3 ) would associate r, s, and t coordinates with each input and output point generated by AdaptivelySample2Facet but does not say anything about input or output points generated by AdaptivelySample1Facet. Call SetEmbeddingDimension( -1, d ) to specify the same dimension for all possible k values. d may not exceed 8, as that would be plain silly.

Definition at line 376 of file vtkStreamingTessellator.h.

◆ SetFieldSize()

virtual void vtkStreamingTessellator::SetFieldSize	(	int	k,
		int	s
	)

virtual

Get/Set the number of field value coordinates associated with each input and output point.

The default is 0; no field values are interpolated. You may specify a different size, s, for each type of k -facet to be processed. For example, SetFieldSize( 2, 3 ) would associate 3 field value coordinates with each input and output point of an AdaptivelySample2Facet call, but does not say anything about input or output points of AdaptivelySample1Facet. Call SetFieldSize( -1, s ) to specify the same dimension for all possible k values. s may not exceed vtkStreamingTessellator::MaxFieldSize. This is a compile-time constant that defaults to 18, which is large enough for a scalar, vector, tensor, normal, and texture coordinate to be included at each point.

Normally, you will not call SetFieldSize() directly; instead, subclasses of vtkEdgeSubdivisionCriterion, such as vtkShoeMeshSubdivisionAlgorithm, will call it for you.

In any event, setting FieldSize to a non-zero value means you must pass field values to the AdaptivelySamplekFacet routines; For example,

* vtkStreamingTessellator* t = vtkStreamingTessellator::New();
* t->SetFieldSize( 1, 3 );
* t->SetEmbeddingDimension( 1, 1 ); // not really required, this is the default
* double p0[3+1+3] = { x0, y0, z0, r0, fx0, fy0, fz0 };
* double p1[3+1+3] = { x1, y1, z1, r1, fx1, fy1, fz1 };
* t->AdaptivelySample1Facet( p0, p1 );
*

This would adaptively sample an curve (1-facet) with geometry and a vector field at every output point on the curve.

◆ GetFieldSize()

int vtkStreamingTessellator::GetFieldSize ( int k ) const

inline

Get/Set the number of field value coordinates associated with each input and output point.

The default is 0; no field values are interpolated. You may specify a different size, s, for each type of k -facet to be processed. For example, SetFieldSize( 2, 3 ) would associate 3 field value coordinates with each input and output point of an AdaptivelySample2Facet call, but does not say anything about input or output points of AdaptivelySample1Facet. Call SetFieldSize( -1, s ) to specify the same dimension for all possible k values. s may not exceed vtkStreamingTessellator::MaxFieldSize. This is a compile-time constant that defaults to 18, which is large enough for a scalar, vector, tensor, normal, and texture coordinate to be included at each point.

Normally, you will not call SetFieldSize() directly; instead, subclasses of vtkEdgeSubdivisionCriterion, such as vtkShoeMeshSubdivisionAlgorithm, will call it for you.

In any event, setting FieldSize to a non-zero value means you must pass field values to the AdaptivelySamplekFacet routines; For example,

* vtkStreamingTessellator* t = vtkStreamingTessellator::New();
* t->SetFieldSize( 1, 3 );
* t->SetEmbeddingDimension( 1, 1 ); // not really required, this is the default
* double p0[3+1+3] = { x0, y0, z0, r0, fx0, fy0, fz0 };
* double p1[3+1+3] = { x1, y1, z1, r1, fx1, fy1, fz1 };
* t->AdaptivelySample1Facet( p0, p1 );
*

This would adaptively sample an curve (1-facet) with geometry and a vector field at every output point on the curve.

Definition at line 383 of file vtkStreamingTessellator.h.

◆ SetMaximumNumberOfSubdivisions()

virtual void vtkStreamingTessellator::SetMaximumNumberOfSubdivisions ( int num_subdiv_in )

virtual

Get/Set the maximum number of subdivisions that may occur.

◆ GetMaximumNumberOfSubdivisions()

int vtkStreamingTessellator::GetMaximumNumberOfSubdivisions ( )

inline

Get/Set the maximum number of subdivisions that may occur.

Definition at line 390 of file vtkStreamingTessellator.h.

◆ AdaptivelySample3FacetLinear()

void vtkStreamingTessellator::AdaptivelySample3FacetLinear	(	double *	v0,
		double *	v1,
		double *	v2,
		double *	v3
	)		const

This will adaptively subdivide the tetrahedron (3-facet), triangle (2-facet), or edge (1-facet) until the subdivision algorithm returns false for every edge or the maximum recursion depth is reached.

Use SetMaximumNumberOfSubdivisions to change the maximum recursion depth.

The AdaptivelySample0Facet method is provided as a convenience. Obviously, there is no way to adaptively subdivide a vertex. Instead the input vertex is passed unchanged to the output via a call to the registered VertexProcessorFunction callback.

.SECTION Warning This assumes that you have called SetSubdivisionAlgorithm(), SetEdgeCallback(), SetTriangleCallback(), and SetTetrahedronCallback() with valid values!

◆ AdaptivelySample2FacetLinear()

void vtkStreamingTessellator::AdaptivelySample2FacetLinear	(	double *	v0,
		double *	v1,
		double *	v2
	)		const

This will adaptively subdivide the tetrahedron (3-facet), triangle (2-facet), or edge (1-facet) until the subdivision algorithm returns false for every edge or the maximum recursion depth is reached.

Use SetMaximumNumberOfSubdivisions to change the maximum recursion depth.

The AdaptivelySample0Facet method is provided as a convenience. Obviously, there is no way to adaptively subdivide a vertex. Instead the input vertex is passed unchanged to the output via a call to the registered VertexProcessorFunction callback.

.SECTION Warning This assumes that you have called SetSubdivisionAlgorithm(), SetEdgeCallback(), SetTriangleCallback(), and SetTetrahedronCallback() with valid values!

◆ AdaptivelySample1FacetLinear()

void vtkStreamingTessellator::AdaptivelySample1FacetLinear	(	double *	v0,
		double *	v1
	)		const

This will adaptively subdivide the tetrahedron (3-facet), triangle (2-facet), or edge (1-facet) until the subdivision algorithm returns false for every edge or the maximum recursion depth is reached.

Use SetMaximumNumberOfSubdivisions to change the maximum recursion depth.

The AdaptivelySample0Facet method is provided as a convenience. Obviously, there is no way to adaptively subdivide a vertex. Instead the input vertex is passed unchanged to the output via a call to the registered VertexProcessorFunction callback.

.SECTION Warning This assumes that you have called SetSubdivisionAlgorithm(), SetEdgeCallback(), SetTriangleCallback(), and SetTetrahedronCallback() with valid values!

◆ AdaptivelySample3Facet() [1/2]

void vtkStreamingTessellator::AdaptivelySample3Facet	(	double *	v0,
		double *	v1,
		double *	v2,
		double *	v3
	)		const

inline

This will adaptively subdivide the tetrahedron (3-facet), triangle (2-facet), or edge (1-facet) until the subdivision algorithm returns false for every edge or the maximum recursion depth is reached.

Use SetMaximumNumberOfSubdivisions to change the maximum recursion depth.

The AdaptivelySample0Facet method is provided as a convenience. Obviously, there is no way to adaptively subdivide a vertex. Instead the input vertex is passed unchanged to the output via a call to the registered VertexProcessorFunction callback.

.SECTION Warning This assumes that you have called SetSubdivisionAlgorithm(), SetEdgeCallback(), SetTriangleCallback(), and SetTetrahedronCallback() with valid values!

Definition at line 361 of file vtkStreamingTessellator.h.

◆ AdaptivelySample2Facet() [1/2]

void vtkStreamingTessellator::AdaptivelySample2Facet	(	double *	v0,
		double *	v1,
		double *	v2
	)		const

inline

This will adaptively subdivide the tetrahedron (3-facet), triangle (2-facet), or edge (1-facet) until the subdivision algorithm returns false for every edge or the maximum recursion depth is reached.

Use SetMaximumNumberOfSubdivisions to change the maximum recursion depth.

The AdaptivelySample0Facet method is provided as a convenience. Obviously, there is no way to adaptively subdivide a vertex. Instead the input vertex is passed unchanged to the output via a call to the registered VertexProcessorFunction callback.

.SECTION Warning This assumes that you have called SetSubdivisionAlgorithm(), SetEdgeCallback(), SetTriangleCallback(), and SetTetrahedronCallback() with valid values!

Definition at line 366 of file vtkStreamingTessellator.h.

◆ AdaptivelySample1Facet() [1/2]

void vtkStreamingTessellator::AdaptivelySample1Facet	(	double *	v0,
		double *	v1
	)		const

inline

This will adaptively subdivide the tetrahedron (3-facet), triangle (2-facet), or edge (1-facet) until the subdivision algorithm returns false for every edge or the maximum recursion depth is reached.

Use SetMaximumNumberOfSubdivisions to change the maximum recursion depth.

The AdaptivelySample0Facet method is provided as a convenience. Obviously, there is no way to adaptively subdivide a vertex. Instead the input vertex is passed unchanged to the output via a call to the registered VertexProcessorFunction callback.

.SECTION Warning This assumes that you have called SetSubdivisionAlgorithm(), SetEdgeCallback(), SetTriangleCallback(), and SetTetrahedronCallback() with valid values!

Definition at line 371 of file vtkStreamingTessellator.h.

◆ AdaptivelySample0Facet()

void vtkStreamingTessellator::AdaptivelySample0Facet ( double * v0 ) const

This will adaptively subdivide the tetrahedron (3-facet), triangle (2-facet), or edge (1-facet) until the subdivision algorithm returns false for every edge or the maximum recursion depth is reached.

Use SetMaximumNumberOfSubdivisions to change the maximum recursion depth.

The AdaptivelySample0Facet method is provided as a convenience. Obviously, there is no way to adaptively subdivide a vertex. Instead the input vertex is passed unchanged to the output via a call to the registered VertexProcessorFunction callback.

.SECTION Warning This assumes that you have called SetSubdivisionAlgorithm(), SetEdgeCallback(), SetTriangleCallback(), and SetTetrahedronCallback() with valid values!

◆ ResetCounts()

void vtkStreamingTessellator::ResetCounts ( )

inline

Reset/access the histogram of subdivision cases encountered.

The histogram may be used to examine coverage during testing as well as characterizing the tessellation algorithm's performance. You should call ResetCounts() once, at the beginning of a stream of tetrahedra. It must be called before AdaptivelySample3Facet() to prevent uninitialized memory reads.

These functions have no effect (and return 0) when PARAVIEW_DEBUG_TESSELLATOR has not been defined. By default, PARAVIEW_DEBUG_TESSELLATOR is not defined, and your code will be fast and efficient. Really!

Definition at line 273 of file vtkStreamingTessellator.h.

◆ GetCaseCount()

vtkIdType vtkStreamingTessellator::GetCaseCount ( int c )

inline

Reset/access the histogram of subdivision cases encountered.

The histogram may be used to examine coverage during testing as well as characterizing the tessellation algorithm's performance. You should call ResetCounts() once, at the beginning of a stream of tetrahedra. It must be called before AdaptivelySample3Facet() to prevent uninitialized memory reads.

These functions have no effect (and return 0) when PARAVIEW_DEBUG_TESSELLATOR has not been defined. By default, PARAVIEW_DEBUG_TESSELLATOR is not defined, and your code will be fast and efficient. Really!

Definition at line 286 of file vtkStreamingTessellator.h.

◆ GetSubcaseCount()

vtkIdType vtkStreamingTessellator::GetSubcaseCount	(	int	casenum,
		int	sub
	)

inline

Reset/access the histogram of subdivision cases encountered.

The histogram may be used to examine coverage during testing as well as characterizing the tessellation algorithm's performance. You should call ResetCounts() once, at the beginning of a stream of tetrahedra. It must be called before AdaptivelySample3Facet() to prevent uninitialized memory reads.

These functions have no effect (and return 0) when PARAVIEW_DEBUG_TESSELLATOR has not been defined. By default, PARAVIEW_DEBUG_TESSELLATOR is not defined, and your code will be fast and efficient. Really!

Definition at line 295 of file vtkStreamingTessellator.h.

◆ AdaptivelySample3Facet() [2/2]

void vtkStreamingTessellator::AdaptivelySample3Facet	(	double *	v0,
		double *	v1,
		double *	v2,
		double *	v3,
		int	maxDepth
	)		const

protected

◆ AdaptivelySample2Facet() [2/2]

void vtkStreamingTessellator::AdaptivelySample2Facet	(	double *	v0,
		double *	v1,
		double *	v2,
		int	maxDepth,
		int	move = `7`
	)		const

protected

◆ AdaptivelySample1Facet() [2/2]

void vtkStreamingTessellator::AdaptivelySample1Facet	(	double *	v0,
		double *	v1,
		int	maxDepth
	)		const

protected

◆ BestTets()

int vtkStreamingTessellator::BestTets	(	int *	,
		double **	,
		int	,
		int
	)		const

protected

Member Data Documentation

◆ EdgeCodesToCaseCodesPlusPermutation

int vtkStreamingTessellator::EdgeCodesToCaseCodesPlusPermutation[64][2]

staticprotected

Definition at line 308 of file vtkStreamingTessellator.h.

◆ PermutationsFromIndex

vtkIdType vtkStreamingTessellator::PermutationsFromIndex[24][14]

staticprotected

Definition at line 309 of file vtkStreamingTessellator.h.

◆ TetrahedralDecompositions

vtkIdType vtkStreamingTessellator::TetrahedralDecompositions[]

staticprotected

Definition at line 310 of file vtkStreamingTessellator.h.

◆ PrivateData

void* vtkStreamingTessellator::PrivateData

protected

Definition at line 312 of file vtkStreamingTessellator.h.

◆ ConstPrivateData

const void* vtkStreamingTessellator::ConstPrivateData

protected

Definition at line 313 of file vtkStreamingTessellator.h.

◆ Algorithm

vtkEdgeSubdivisionCriterion* vtkStreamingTessellator::Algorithm

protected

Definition at line 314 of file vtkStreamingTessellator.h.

◆ Callback0

VertexProcessorFunction vtkStreamingTessellator::Callback0

protected

Definition at line 316 of file vtkStreamingTessellator.h.

◆ Callback1

EdgeProcessorFunction vtkStreamingTessellator::Callback1

protected

Definition at line 317 of file vtkStreamingTessellator.h.

◆ Callback2

TriangleProcessorFunction vtkStreamingTessellator::Callback2

protected

Definition at line 318 of file vtkStreamingTessellator.h.

◆ Callback3

TetrahedronProcessorFunction vtkStreamingTessellator::Callback3

protected

Definition at line 319 of file vtkStreamingTessellator.h.

◆ PointDimension

int vtkStreamingTessellator::PointDimension[4]

protected

PointDimension is the length of each double* array associated with each point passed to a subdivision algorithm: PointDimension[i] = 3 + EmbeddingDimension[i] + FieldSize[i] We store this instead of FieldSize for speed.

Only entries 1 through 3 are used; you can't subdivide 0-facets (points). Well, maybe you can, but I can't!

Definition at line 333 of file vtkStreamingTessellator.h.

◆ EmbeddingDimension

int vtkStreamingTessellator::EmbeddingDimension[4]

protected

The parametric dimension of each point passed to the subdivision algorithm.

Only entries 1 through 3 are used; you can't subdivide 0-facets (points). Well, maybe you can, but I can't!

Definition at line 340 of file vtkStreamingTessellator.h.

◆ MaximumNumberOfSubdivisions

int vtkStreamingTessellator::MaximumNumberOfSubdivisions

protected

The number of subdivisions allowed.

Definition at line 345 of file vtkStreamingTessellator.h.

The documentation for this class was generated from the following file:

Filters/Core/vtkStreamingTessellator.h

Public Types

Public Member Functions

Static Public Member Functions

Protected Member Functions

Protected Attributes

Static Protected Attributes

Additional Inherited Members

Detailed Description

Member Typedef Documentation

◆ Superclass

◆ VertexProcessorFunction

◆ EdgeProcessorFunction

◆ TriangleProcessorFunction

◆ TetrahedronProcessorFunction

Member Enumeration Documentation

◆ anonymous enum

Constructor & Destructor Documentation

◆ vtkStreamingTessellator()

◆ ~vtkStreamingTessellator()

Member Function Documentation

◆ IsTypeOf()

◆ IsA()

◆ SafeDownCast()

◆ NewInstanceInternal()

◆ NewInstance()

◆ New()

◆ PrintSelf()

◆ SetTetrahedronCallback()

◆ GetTetrahedronCallback()

◆ SetTriangleCallback()

◆ GetTriangleCallback()

◆ SetEdgeCallback()

◆ GetEdgeCallback()

◆ SetVertexCallback()

◆ GetVertexCallback()

◆ SetPrivateData()

◆ GetPrivateData()

◆ SetConstPrivateData()

◆ GetConstPrivateData()

◆ SetSubdivisionAlgorithm()

◆ GetSubdivisionAlgorithm() [1/2]

◆ GetSubdivisionAlgorithm() [2/2]

◆ SetEmbeddingDimension()

◆ GetEmbeddingDimension()

◆ SetFieldSize()

◆ GetFieldSize()

◆ SetMaximumNumberOfSubdivisions()

◆ GetMaximumNumberOfSubdivisions()

◆ AdaptivelySample3FacetLinear()

◆ AdaptivelySample2FacetLinear()

◆ AdaptivelySample1FacetLinear()

◆ AdaptivelySample3Facet() [1/2]

◆ AdaptivelySample2Facet() [1/2]

◆ AdaptivelySample1Facet() [1/2]

◆ AdaptivelySample0Facet()

◆ ResetCounts()

◆ GetCaseCount()

◆ GetSubcaseCount()

◆ AdaptivelySample3Facet() [2/2]

◆ AdaptivelySample2Facet() [2/2]

◆ AdaptivelySample1Facet() [2/2]

◆ BestTets()

Member Data Documentation

◆ EdgeCodesToCaseCodesPlusPermutation

◆ PermutationsFromIndex

◆ TetrahedralDecompositions

◆ PrivateData

◆ ConstPrivateData

◆ Algorithm

◆ Callback0

◆ Callback1

◆ Callback2

◆ Callback3

◆ PointDimension

◆ EmbeddingDimension

◆ MaximumNumberOfSubdivisions